CN106664613A - Bandwidth resource allocation method and transport controller - Google Patents

Bandwidth resource allocation method and transport controller Download PDF

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Publication number
CN106664613A
CN106664613A CN201480081193.6A CN201480081193A CN106664613A CN 106664613 A CN106664613 A CN 106664613A CN 201480081193 A CN201480081193 A CN 201480081193A CN 106664613 A CN106664613 A CN 106664613A
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bandwidth
link
agreed
message
controller
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CN106664613B (en
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郑好棉
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Embodiments of the present invention provide a bandwidth resource allocation method. The method comprises: a transport controller receives a first network topology request message from a first client controller, wherein the first network topology request message comprises first node information of a first link, last node information of the first link and the bandwidth requirement of the first link; the transport controller determines whether the bandwidth that can be allocated to the first link satisfies the bandwidth requirement of the first link; when it is determined that the bandwidth that can be allocated to the first link does not satisfy the bandwidth requirement of the first link, the transport controller determines whether idle bandwidth exists in the bandwidth already allocated to the first link, if yes, the transport controller determines whether the total sum of the bandwidth that can be allocated to the first link and the idle bandwidth in the bandwidth already allocated to the first link satisfies the bandwidth requirement of the first link, and if yes, the transport controller selects first idle bandwidth in the bandwidth already allocated to the first link as first negotiated bandwidth, the first idle bandwidth in the bandwidth already allocated to the first link belonging to a second client controller; and the transport controller sends a first negotiated bandwidth message to the second client controller, wherein the first negotiated bandwidth message comprises the first node information of the first link, the last node information of the first link and first negotiated bandwidth information.

Description

A kind of distribution method of bandwidth resources and transmission net controller Technical field
The present embodiments relate to communication technical field, more particularly to a kind of distribution method of bandwidth resources and transmission net controller.
Background technology
Virtual transmission service (Virtual Transport Service, VTS it is) to provide a kind of effective means of Virtual Service for transmission network users, virtual transmission service has two roles, respectively rent the transmission demand for services side of resource, tenant and the transmission service provider of resource is provided, i.e. operator.Network physical resource carries out virtualization division by operator, and network physical resource is divided into mutual independent virtual network topology one by one according to tenant's demand, different tenants are provided to.Under this framework and service mode, resource is independent mutually between different tenants, will not experience mutual presence.Each tenant manages the virtual network that oneself is rented to operator by customer controller (Client Controller, CC).The resource allocation of operator is carried out by transmitting net controller (Transport Controller, TC), is responsible for virtualizing actual physical resource cutting into slices, is given different tenants.
Resource in the prior art between different tenants is separate, it is impossible to shared, when the allowable resource for transmitting net controller is nervous, it is impossible to meet the networking demand of customer controller.
The content of the invention
The embodiment of the present invention provide a kind of bandwidth resources distribution method and and transmission net controller, for realizing the resource-sharing between different tenants.
In a first aspect, the embodiment of the present invention provides a kind of distribution method of bandwidth resources, including：
Transmit net controller and receive the first network topology request message from the first customer controller, the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link；
Transmission net controller judges the band whether bandwidth meets first link that distributes of the first link Wide demand；
When judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link, if, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link, if, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the distributed in bandwidth first idle bandwidth of first link belongs to the second customer controller；
Transmit net controller and send the first agreed bandwidth message to the second customer controller, the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.
In the first possible implementation of first aspect, the first agreed bandwidth message also includes one or more of time-constrain information, price-cut strategy.
In second of possible implementation of first aspect, methods described also includes, transmit net controller and receive the first agreed bandwidth received message from the second customer controller, the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message.
In the third possible implementation of first aspect, methods described also includes, transmit net controller and receive the first agreed bandwidth refuse information from the second customer controller, the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, methods described also includes, transmit net controller and receive the first agreed bandwidth release message from the second customer controller, the first agreed bandwidth release message is the message that the second customer controller discharges the first agreed bandwidth.
With reference to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, methods described also includes, transmission net controller distributes bandwidth by the first link distributed after bandwidth is updated of first agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link can after updating Distribution bandwidth disclosure satisfy that the bandwidth demand of first link, and according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
In the 6th kind of possible implementation of first aspect, when the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link for judging the first link meets the bandwidth demand of first link, in addition to：
The distributed in bandwidth second idle bandwidth of the first link is chosen as the second agreed bandwidth, the distributed in bandwidth second idle bandwidth of first link belongs to the 3rd customer controller；
Transmit net controller and send the second agreed bandwidth message to the 3rd customer controller, the second agreed bandwidth message includes first node information, the end-node information of the first link, the second agreed bandwidth information of the first link.
With reference to the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation of first aspect, methods described also includes, transmit net controller and receive the second agreed bandwidth received message from the 3rd customer controller, the second agreed bandwidth received message is the message for receiving the second agreed bandwidth message.
With reference to the 6th kind of possible implementation of first aspect, in the 8th kind of possible implementation of first aspect, methods described also includes, transmit net controller and receive the second agreed bandwidth refuse information from the 3rd customer controller, the second agreed bandwidth refuse information is to refuse the message of the second agreed bandwidth message.
With reference to the 7th kind of possible implementation of first aspect, in the 9th kind of possible implementation of first aspect, methods described also includes, transmit net controller and receive the second agreed bandwidth release message from the 3rd customer controller, the second agreed bandwidth release message is the message that the 3rd customer controller discharges the second agreed bandwidth.
With reference to the 9th kind of possible implementation of first aspect, in the tenth kind of possible implementation of first aspect, methods described also includes, transmission net controller adds second agreed bandwidth bandwidth of distributing of the first link distributed after bandwidth is updated of the first link, judges the first link after updating Distribute the bandwidth demand whether bandwidth meets first link, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
Second aspect, the embodiment of the present invention provides a kind of transmission net controller, including
Receiver, for receiving the first network topology request message from the first customer controller, the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link；
First determining device, the bandwidth demand whether bandwidth meets first link that distributes for judging the first link；
Second determining device, for judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link when the first determining device, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link；
3rd determining device, when having idle bandwidth in the bandwidth of distribution for judging the first link when the second determining device, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link；
Selector, during for judging that the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link disclosure satisfy that the bandwidth demand of first link when the 3rd determining device, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the distributed in bandwidth first idle bandwidth of first link belongs to the second customer controller；
Transmitter, for sending the first agreed bandwidth message to the second customer controller, the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.
In the first possible implementation of second aspect, the first agreed bandwidth message that the transmitter is sent also includes one or more of time-constrain information, price-cut strategy.
In second of possible implementation of second aspect, the receiver is additionally operable to receive from the First agreed bandwidth received message of two customer controllers, the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message.
In the third possible implementation of second aspect, the receiver is additionally operable to receive the first agreed bandwidth refuse information from the second customer controller, and the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
With reference to the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, the receiver is additionally operable to receive the first agreed bandwidth release message from the second customer controller, and the first agreed bandwidth release message is the message that the second customer controller discharges the first agreed bandwidth.
With reference to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation of second aspect, in addition to：Distributor, for distributing bandwidth by the first link distributed after bandwidth is updated of first agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
In the 6th kind of possible implementation of second aspect, when the 3rd determining device judges that the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link,
The selector is additionally operable to choose the distributed in bandwidth second idle bandwidth of the first link as the second agreed bandwidth, and the distributed in bandwidth second idle bandwidth of first link belongs to the 3rd customer controller；
The transmitter is additionally operable to send the second agreed bandwidth message to the 3rd customer controller, and the second agreed bandwidth message includes first node information, the end-node information of the first link, the second agreed bandwidth information of the first link.
With reference to the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation of second aspect, the receiver is additionally operable to receive the second agreed bandwidth receiving from the 3rd customer controller Message, the second agreed bandwidth received message is the message for receiving the second agreed bandwidth message.
With reference to the 6th kind of possible implementation of second aspect, in the 8th kind of possible implementation of second aspect, the receiver is additionally operable to receive the second agreed bandwidth refuse information from the 3rd customer controller, and the second agreed bandwidth refuse information is to refuse the message of the second agreed bandwidth message.
With reference to the 7th kind of possible implementation of second aspect, in the 9th kind of possible implementation of second aspect, the receiver is additionally operable to receive the second agreed bandwidth release message from the 3rd customer controller, and the second agreed bandwidth release message is the message that the 3rd customer controller discharges the second agreed bandwidth.
With reference to the 9th kind of possible implementation of second aspect, in the tenth kind of possible implementation of second aspect, the distributor is additionally operable to distribute bandwidth by the first link distributed after bandwidth is updated of second agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
In the embodiment of the present invention, transmit net controller and receive the first network topology request message from the first customer controller, the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link, and transmission net controller judges the bandwidth demand whether bandwidth meets first link that distributes of the first link；When judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link, if, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link, if, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the idle bandwidth of distributed in bandwidth the first of first link belongs to the second customer controller, transmit net controller and send the first agreed bandwidth message to the second customer controller, the first agreed bandwidth message includes the first node information of the first link, the end-node information of first link, first agreed bandwidth information.Transmission net controller distributes bandwidth and the idle bandwidth distributed in bandwidth of the first link according to the first link Situation carry out resource-sharing between different tenants.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in the embodiment of the present invention will be briefly described below, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the distribution method of the bandwidth resources of one embodiment of the invention.
Fig. 1 is the flow chart of the distribution method of the bandwidth resources of another embodiment of the present invention.
A kind of structure chart for transmission net controller that Fig. 3 provides for the present invention.
The structure chart for another transmission net controller that Fig. 4 provides for the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made should all belong to the scope of protection of the invention.
Fig. 1 is the flow chart of the distribution method of the bandwidth resources of one embodiment of the invention.
Step 101, the first customer controller sends first network topology request message to transmission net controller, and the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link.
First network topology request message request sets up whole virtual network, including node, link and link bandwidth, can also include the time restriction information of link, for example as shown in table 1.
Table 1
  First node End-node Bandwidth Time-constrain
Link 1 A B 10G It is early 8 points to late 8 points
Link 2 X Y 100G Nothing
……        
For convenience of understanding, the present embodiment is illustrated by taking the link of two node one as an example, the first link is set up in request, the first node of first link is node A, the end-node of first link is node B, the bandwidth demand of first link is 10G, in the present embodiment, first agreed bandwidth message can also include time-constrain information etc., such as time-constrain is early 8 points to late 8 points, in other embodiments, the information of other links can also be included, the end-node information of first node information, the second link and the bandwidth demand of the second link such as the second link.
Step 102, transmission net controller is received after the first network topology request message from the first customer controller, judges the bandwidth demand whether bandwidth meets first link that distributes of the first link.
Transmission net controller is received after request message, the first link between inquiry local data base interior joint A and node B first distributes the demand whether bandwidth meets the first customer controller, for example, inquiry obtains the distributing with a width of 5G of the first link between node A and node B, it is impossible to meet the 10G of the first customer controller bandwidth demand.
Step 103, when judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link, if, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link, if, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the idle bandwidth of distributed in bandwidth the first of first link belongs to the second customer controller.
In the present embodiment, the service condition for having distributed bandwidth of the link of Net Controller query first is transmitted, for example as shown in table 2.Judgement, which is learnt in the bandwidth of distribution of the first link, idle bandwidth, first link is distributed with a width of 5G, having distributed for first link is idle with a width of 6G in bandwidth, the distribute bandwidth and the summation of the idle bandwidth distributed in bandwidth of the first link of first link are 11G, disclosure satisfy that the bandwidth demand of first link.The distributed in bandwidth first idle bandwidth of net controller the first link of selection is transmitted as the first agreed bandwidth, the 6G spare time for having distributed to the second customer controller can be chosen Bandwidth is put as the first agreed bandwidth, the idle bandwidth of 5G for having distributed to the second customer controller can also be chosen as the first agreed bandwidth, the selection can be carried out based on pre-defined rule, is not limited thereto.The idle bandwidth of 5G for having distributed to the second customer controller is chosen in the present embodiment as the first agreed bandwidth.
In other embodiments, there can be multiple agreed bandwidths, multiple agreed bandwidths adhere to different customer controllers separately, and the summation of multiple agreed bandwidths can be equal to total negotiation demand, can also be more than total negotiation demand, be not limited thereto.
Table 2
  Distribute bandwidth Idle bandwidth
Second customer controller 20G 6G
3rd customer controller 30G 0G
4th customer controller 20G 0G
Step 104, transmission net controller sends the first agreed bandwidth message to the second customer controller, and the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.
In the present embodiment, first agreed bandwidth message can be as shown in table 3, the first node of first link is node A, the end-node of first link is node B, first agreed bandwidth is 5G, in the present embodiment, the first agreed bandwidth message can also include time-constrain information, price-cut strategy etc., and such as time-constrain is early 8 points to late 8 points.
Table 3
  First node End-node Bandwidth Time-constrain Price-cut strategy
Link 1 A B 5G It is early 8 points to late 8 points The SLA information of renewal
Step 105, the second customer controller is received after the first agreed bandwidth message, judges whether to receive agreed bandwidth according to the service deployment situation of itself.If received, send first to transmission net controller and consult Bandwidth received message, the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message, and discharge respective bandwidth resource, the first agreed bandwidth release message is sent to transmission net controller, the first agreed bandwidth release message is the message that the second customer controller has discharged the first agreed bandwidth.If refusal, the first agreed bandwidth refuse information is sent to transmission net controller, the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
Step 106, net controller is transmitted to receive after the first agreed bandwidth release message from the second customer controller, bandwidth is distributed by the first link distributed after bandwidth is updated of first agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
Fig. 2 is the flow chart of the distribution method of the bandwidth resources of another embodiment of the present invention.
Step 201, the first customer controller sends first network topology request message to transmission net controller, and the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link.
First network topology request message request sets up whole virtual network, including node, link and link bandwidth, can also include the time restriction information of link, for example as shown in table 4.
Table 4
  First node End-node Bandwidth Time-constrain
Link 1 X Y 100G Nothing
Link 2 C D 10G Nothing
……        
For convenience of understanding, the present embodiment is illustrated by taking the link of two node one as an example, and the first link is set up in request, and the first node of the first link is nodes X, and the end-node of the first link is node Y, first link Bandwidth demand be 100G.
Step 202, transmission net controller is received after the first network topology request message from the first customer controller, judges the bandwidth demand whether bandwidth meets first link that distributes of the first link.
Transmission net controller is received after request message, the first link between inquiry local data base interior joint A and node B first distributes the demand whether bandwidth meets the first customer controller, for example, inquiry obtains the distributing with a width of 80G of the first link between node A and node B, it is impossible to meet the 100G of the first customer controller bandwidth demand.
Step 203, when judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link, if, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link, if, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the idle bandwidth of distributed in bandwidth the first of first link belongs to the second customer controller, the distributed in bandwidth second idle bandwidth of the first link is chosen as the second agreed bandwidth, the idle bandwidth of distributed in bandwidth the second of first link belongs to the 3rd customer controller.
In the present embodiment, the service condition for having distributed bandwidth of the link of Net Controller query first is transmitted, for example as shown in table 5.Judgement, which is learnt in the bandwidth of distribution of the first link, idle bandwidth, first link is distributed with a width of 80G, having distributed for first link is idle with a width of 20G in bandwidth, the distribute bandwidth and the summation of the idle bandwidth distributed in bandwidth of the first link of first link are 100G, disclosure satisfy that the bandwidth demand of first link.The distributed in bandwidth first idle bandwidth that transmission net controller chooses the first link is used as the first agreed bandwidth.The idle bandwidth of 10G for having distributed to the second customer controller is chosen in the present embodiment as the first agreed bandwidth, the idle bandwidth of 10G for having distributed to the 3rd customer controller is chosen as the second agreed bandwidth.
Table 5
  Distribute bandwidth Idle bandwidth
Second customer controller 20G 15G
3rd customer controller 30G 5G
4th customer controller 20G 0G
In other embodiments, the service condition for having distributed bandwidth of the first link may also be as shown in table 6.Judgement, which is learnt in the bandwidth of distribution of the first link, idle bandwidth, first link is distributed with a width of 80G, having distributed for first link is idle with a width of 25G in bandwidth, the distribute bandwidth and the summation of the idle bandwidth distributed in bandwidth of the first link of first link are 105G, disclosure satisfy that the bandwidth demand of first link.The distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth.The selection of idle bandwidth can have many methods, for example, choose the second customer controller 15G, the 3rd customer controller 5G；Choose the second customer controller 15G, the 4th customer controller 5G；Choose the second customer controller 10G, the 3rd customer controller 5G, the 4th customer controller 5G；Choose second customer controller 12G, the 3rd customer controller 5G, the 4th customer controller 3G etc..
Table 6
  Distribute bandwidth Idle bandwidth
Second customer controller 20G 15G
3rd customer controller 30G 5G
4th customer controller 20G 5G
Step 204, transmission net controller sends the first agreed bandwidth message to the second customer controller, and the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.Transmit net controller and send the second agreed bandwidth message to the 3rd customer controller, the second agreed bandwidth message includes first node information, the end-node information of the first link, the second agreed bandwidth information of the first link, and the transmission order of the first agreed bandwidth message and the second agreed bandwidth message is not construed as limiting.
In the present embodiment, the first agreed bandwidth message can be as shown in table 6, and the first node of the first link is Nodes X, the end-node of the first link is node Y, and the first agreed bandwidth is 15G, can also include SLA information of renewal etc..
Table 6
  First node End-node Bandwidth Price-cut strategy
Link 1 X Y 15G The SLA information of renewal
In the present embodiment, the second agreed bandwidth message can be as shown in table 7, and the first node of the first link is nodes X, and the end-node of the first link is node Y, and the second agreed bandwidth is 10G, can also include SLA information of renewal etc..
Table 7
  First node End-node Bandwidth Price-cut strategy
Link 1 X Y 5G The SLA information of renewal
Step 205, the second customer controller is received after the first agreed bandwidth message, judges whether to receive agreed bandwidth according to the service deployment situation of itself.If received, the first agreed bandwidth received message is sent to transmission net controller, the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message, and discharge respective bandwidth resource, the first agreed bandwidth release message is sent to transmission net controller, the first agreed bandwidth release message is the message that the second customer controller has discharged the first agreed bandwidth.If refusal, the first agreed bandwidth refuse information is sent to transmission net controller, the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
Step 206, the 3rd customer controller is received after the second agreed bandwidth message, judges whether to receive agreed bandwidth according to the service deployment situation of itself.If received, the second agreed bandwidth received message is sent to transmission net controller, the second agreed bandwidth received message is the message for receiving the second agreed bandwidth message, and discharge respective bandwidth resource, the second agreed bandwidth release message is sent to transmission net controller, the second agreed bandwidth release message is that the 3rd customer controller has discharged disappearing for the second agreed bandwidth Breath.If refusal, the second agreed bandwidth refuse information is sent to transmission net controller, the second agreed bandwidth refuse information is to refuse the message of the second agreed bandwidth message.
It is not construed as limiting here, receiving the sequencing that the execution after the first agreed bandwidth message is acted and the 3rd customer controller is received after the second agreed bandwidth message between execution action to the second customer controller.
Step 207, net controller is transmitted to receive after the first agreed bandwidth release message from the second customer controller, bandwidth is distributed by the first link distributed after bandwidth is updated of first agreed bandwidth the first link of addition, net controller is transmitted to receive after the second agreed bandwidth release message from the 3rd customer controller, bandwidth is distributed by the first link distributed after bandwidth is updated of second agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
In the present embodiment, net controller is transmitted to receive after the first agreed bandwidth release message from the second customer controller, the first link distributed after bandwidth is updated that 15G the first agreed bandwidth is added to 80G is distributed with a width of 95G, and now the bandwidth of distributing of the first link remains unchanged and can not meet the bandwidth demand of first link after renewal.Net controller is transmitted to receive after the second agreed bandwidth release message from the 3rd customer controller, the first link distributed after bandwidth is updated that 5G the first agreed bandwidth is added to 95G is distributed with a width of 100G, and now the bandwidth of distributing of the first link remains unchanged and can not meet the bandwidth demand of first link after renewal.Now according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.In other embodiments, it is also possible to first receive the second agreed bandwidth release message from the 3rd customer controller, then receive the first agreed bandwidth release message from the second customer controller, be not limited thereto.
In the present embodiment, if all agreed bandwidth message have been completed, but the bandwidth of distributing of the first link remains unchanged and can not meet the bandwidth demand of first link after updating, then sends failed message to the first customer controller.Such as the 3rd customer controller refusal in the present embodiment receives agreed bandwidth, transmission net Controller, which is received, comes from the 3rd customer controller the second agreed bandwidth refuse information.
A kind of structure chart for transmission net controller 30 that Fig. 3 provides for the present invention, including：
Receiver 31, for receiving the first network topology request message from the first customer controller, the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link；
First determining device 32, the bandwidth demand whether bandwidth meets first link that distributes for judging the first link；
Second determining device 33, for judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link when the first determining device, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link；
3rd determining device 34, when having idle bandwidth in the bandwidth of distribution for judging the first link when the second determining device, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link；
Selector 35, during for judging that the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link disclosure satisfy that the bandwidth demand of first link when the 3rd determining device, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the distributed in bandwidth first idle bandwidth of first link belongs to the second customer controller；
Transmitter 36, for sending the first agreed bandwidth message to the second customer controller, the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.
Further, the first agreed bandwidth message that the transmitter is sent also includes one or more of time-constrain information, price-cut strategy.
Further, the receiver is additionally operable to receive the first agreed bandwidth received message from the second customer controller, and the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message.
Further, the receiver is additionally operable to receive the first agreed bandwidth from the second customer controller Refuse information, the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
Further, the receiver is additionally operable to receive the first agreed bandwidth release message from the second customer controller, and the first agreed bandwidth release message is the message that the second customer controller discharges the first agreed bandwidth.
Further, distributor can also be included, for distributing bandwidth by the first link distributed after bandwidth is updated of first agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
Further, when the 3rd determining device judges that the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link,
The selector can be also used for choosing the distributed in bandwidth second idle bandwidth of the first link as the second agreed bandwidth, and the distributed in bandwidth second idle bandwidth of first link belongs to the 3rd customer controller；
The transmitter can be also used for sending the second agreed bandwidth message to the 3rd customer controller, and the second agreed bandwidth message includes first node information, the end-node information of the first link, the second agreed bandwidth information of the first link.
Further, the receiver is additionally operable to receive the second agreed bandwidth received message from the 3rd customer controller, and the second agreed bandwidth received message is the message for receiving the second agreed bandwidth message.
Further, the receiver is additionally operable to receive the second agreed bandwidth refuse information from the 3rd customer controller, and the second agreed bandwidth refuse information is to refuse the message of the second agreed bandwidth message.
Further, the receiver is additionally operable to receive the second agreed bandwidth release message from the 3rd customer controller, and the second agreed bandwidth release message is that the 3rd customer controller discharges the second agreed bandwidth Message.
Further, the distributor is additionally operable to distribute bandwidth by the first link distributed after bandwidth is updated of second agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
The structure chart for another transmission net controller 40 that Fig. 4 provides for the present invention, including：
Input unit 41, output device 42 and processor 43 (quantity for wherein transmitting the processor in net controller 40 can be with one or more, in Fig. 4 by taking a processor 43 as an example).Memory 44 can also be included in the transmission net controller, in some embodiments of the invention, input unit 41, output device 42, processor 43 and memory 44 can be connected by bus or other manner, wherein, in Fig. 4 exemplified by being connected by bus.
Wherein, the input unit 41, for the operation according to processor 43, receives the information that customer controller is sent；
The output device 42, for the operation according to processor 43, sends information to customer controller；
Pass through the operational order for calling memory 44 to store, processor 43, for performing following operation：
The first network topology request message from the first customer controller is received, the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link；
Judge the bandwidth demand whether bandwidth meets first link that distributes of the first link；
When judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link, whether there is idle bandwidth in the bandwidth of distribution for judging the first link, if, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link, if, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the distributed in bandwidth first idle bandwidth of first link belongs to the second customer controller；
The first agreed bandwidth message is sent to the second customer controller, the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.
Wherein, the first agreed bandwidth message also includes one or more of time-constrain information, price-cut strategy.
Processor 43 is additionally operable to control and receives the first agreed bandwidth received message from the second customer controller, and the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message.
Processor 43 is additionally operable to control and receives the first agreed bandwidth refuse information from the second customer controller, and the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
Processor 43 is additionally operable to control and receives the first agreed bandwidth release message from the second customer controller, and the first agreed bandwidth release message is the message that the second customer controller discharges the first agreed bandwidth.
Processor 43 is additionally operable to control and distributes bandwidth by the first link distributed after bandwidth is updated of first agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller in the updated.
Processor 43 is additionally operable to control when the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link for judging the first link meets the bandwidth demand of first link, in addition to：
The distributed in bandwidth second idle bandwidth of the first link is chosen as the second agreed bandwidth, the distributed in bandwidth second idle bandwidth of first link belongs to the 3rd customer controller；
The second agreed bandwidth message is sent to the 3rd customer controller, the second agreed bandwidth message includes first node information, the end-node information of the first link, the second agreed bandwidth information of the first link.
Processor 43 is additionally operable to control and receives the second agreed bandwidth received message from the 3rd customer controller, and the second agreed bandwidth received message is the message for receiving the second agreed bandwidth message.
Processor 43 is additionally operable to control and receives the second agreed bandwidth refuse information from the 3rd customer controller, and the second agreed bandwidth refuse information is to refuse the message of the second agreed bandwidth message.
Processor 43 is additionally operable to control and receives the second agreed bandwidth release message from the 3rd customer controller, and the second agreed bandwidth release message is the message that the 3rd customer controller discharges the second agreed bandwidth.
Processor 43 is additionally operable to control and distributes bandwidth by the first link distributed after bandwidth is updated of second agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller in the updated.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of the system, apparatus, and unit of foregoing description may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.

Claims (22)

  1. A kind of distribution method of bandwidth resources, it is characterised in that：
    Transmit net controller and receive the first network topology request message from the first customer controller, the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link；
    Transmission net controller judges the bandwidth demand whether bandwidth meets first link that distributes of the first link；
    When judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link, if, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link, if, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the distributed in bandwidth first idle bandwidth of first link belongs to the second customer controller；
    Transmit net controller and send the first agreed bandwidth message to the second customer controller, the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.
  2. According to the method described in claim 1, it is characterised in that the first agreed bandwidth message also includes one or more of time-constrain information, price-cut strategy.
  3. According to the method described in claim 1, it is characterised in that also include：
    Transmit net controller and receive the first agreed bandwidth received message from the second customer controller, the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message.
  4. According to the method described in claim 1, it is characterised in that also include：
    Transmit net controller and receive the first agreed bandwidth refuse information from the second customer controller, the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
  5. Method according to claim 3, it is characterised in that also include：
    Transmit net controller and receive the first agreed bandwidth release message from the second customer controller, the first agreed bandwidth release message is the message that the second customer controller discharges the first agreed bandwidth.
  6. Method according to claim 5, it is characterised in that also include：
    The first link for distributing after bandwidth is updated that first agreed bandwidth adds the first link is distributed bandwidth by transmission net controller, and judge the first link after renewal distributes whether bandwidth meets The bandwidth demand of first link, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
  7. According to the method described in claim 1, it is characterised in that when the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link for judging the first link meets the bandwidth demand of first link, in addition to：
    The distributed in bandwidth second idle bandwidth of the first link is chosen as the second agreed bandwidth, the distributed in bandwidth second idle bandwidth of first link belongs to the 3rd customer controller；
    Transmit net controller and send the second agreed bandwidth message to the 3rd customer controller, the second agreed bandwidth message includes first node information, the end-node information of the first link, the second agreed bandwidth information of the first link.
  8. Method according to claim 7, it is characterised in that also include：
    Transmit net controller and receive the second agreed bandwidth received message from the 3rd customer controller, the second agreed bandwidth received message is the message for receiving the second agreed bandwidth message.
  9. Method according to claim 7, it is characterised in that also include：
    Transmit net controller and receive the second agreed bandwidth refuse information from the 3rd customer controller, the second agreed bandwidth refuse information is to refuse the message of the second agreed bandwidth message.
  10. Method according to claim 8, it is characterised in that also include：
    Transmit net controller and receive the second agreed bandwidth release message from the 3rd customer controller, the second agreed bandwidth release message is the message that the 3rd customer controller discharges the second agreed bandwidth.
  11. Method according to claim 10, it is characterised in that also include：
    Transmission net controller distributes bandwidth by the first link distributed after bandwidth is updated of second agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
  12. One kind transmission net controller, it is characterised in that：
    Receiver, for receiving the first network topology request message from the first customer controller, the first network topology request message includes the bandwidth demand of the first node information, the end-node information of the first link and the first link of the first link；
    First determining device, distributes whether bandwidth meets first link for judge the first link Bandwidth demand；
    Second determining device, for judging when distributing bandwidth and can not meet the bandwidth demand of first link of the first link when the first determining device, transmission net controller judges whether there is idle bandwidth in the bandwidth of distribution of the first link；
    3rd determining device, when having idle bandwidth in the bandwidth of distribution for judging the first link when the second determining device, judge whether the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link；
    Selector, during for judging that the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link disclosure satisfy that the bandwidth demand of first link when the 3rd determining device, the distributed in bandwidth first idle bandwidth of the first link is chosen as the first agreed bandwidth, the distributed in bandwidth first idle bandwidth of first link belongs to the second customer controller；
    Transmitter, for sending the first agreed bandwidth message to the second customer controller, the first agreed bandwidth message includes first node information, the end-node information of the first link, the first agreed bandwidth information of the first link.
  13. Transmission net controller according to claim 12, it is characterised in that the first agreed bandwidth message that the transmitter is sent also includes one or more of time-constrain information, price-cut strategy.
  14. Transmission net controller according to claim 12, it is characterised in that
    The receiver is additionally operable to receive the first agreed bandwidth received message from the second customer controller, and the first agreed bandwidth received message is the message for receiving the first agreed bandwidth message.
  15. Transmission net controller according to claim 12, it is characterised in that
    The receiver is additionally operable to receive the first agreed bandwidth refuse information from the second customer controller, and the first agreed bandwidth refuse information is to refuse the message of the first agreed bandwidth message.
  16. Transmission net controller according to claim 14, it is characterised in that
    The receiver is additionally operable to receive the first agreed bandwidth release message from the second customer controller, and the first agreed bandwidth release message is the message that the second customer controller discharges the first agreed bandwidth.
  17. Transmission net controller according to claim 16, it is characterised in that also include：
    Distributor, for distributing bandwidth by the first link distributed after bandwidth is updated of first agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
  18. Transmission net controller according to claim 12, it is characterised in that when the 3rd determining device judges that the summation for distributing bandwidth and the idle bandwidth distributed in bandwidth of the first link of the first link meets the bandwidth demand of first link,
    The selector is additionally operable to choose the distributed in bandwidth second idle bandwidth of the first link as the second agreed bandwidth, and the distributed in bandwidth second idle bandwidth of first link belongs to the 3rd customer controller；
    The transmitter is additionally operable to send the second agreed bandwidth message to the 3rd customer controller, and the second agreed bandwidth message includes first node information, the end-node information of the first link, the second agreed bandwidth information of the first link.
  19. Transmission net controller according to claim 18, it is characterised in that
    The receiver is additionally operable to receive the second agreed bandwidth received message from the 3rd customer controller, and the second agreed bandwidth received message is the message for receiving the second agreed bandwidth message.
  20. Transmission net controller according to claim 18, it is characterised in that
    The receiver is additionally operable to receive the second agreed bandwidth refuse information from the 3rd customer controller, and the second agreed bandwidth refuse information is to refuse the message of the second agreed bandwidth message.
  21. Transmission net controller according to claim 19, it is characterised in that
    The receiver is additionally operable to receive the second agreed bandwidth release message from the 3rd customer controller, and the second agreed bandwidth release message is the message that the 3rd customer controller discharges the second agreed bandwidth.
  22. Transmission net controller according to claim 21, it is characterised in that
    The distributor is additionally operable to distribute bandwidth by the first link distributed after bandwidth is updated of second agreed bandwidth the first link of addition, judge that the first link distributes the bandwidth demand whether bandwidth meets first link after updating, if the first link distributes the bandwidth demand that bandwidth disclosure satisfy that first link after updating, according to the bandwidth demand of the first link, distributing in bandwidth for the first link distributes respective bandwidth to the first customer controller to transmission net controller in the updated.
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